Can i use this amp to bypass my knackered active amp ie just usse the shell and connect direct to the speaker?

Yes I bought it to do this myself just had to open the sub and disconnect the plate amp. Used the speaker connections for convenience wired to be a passive sub.

Can I use this amplifier with active subwoofer only? (Without connecting anything to speaker output?)

No it need a full range speaker and then used with an active sub woofer

Can this work with tpa3116 amplifier (ns-15g) and nobsound 6j2 vacuum tube preamplifier? i want to add a subwoofer to my hi fi.

as long as your current amplifier has a sub out channel or any such output that can provide a signal such as a tape out.

Can i connect a 100 w bookshelf speaker and 150w active subwoofer in the full frequency mode ? at the same time ? thx

In full frequency mode the unit is just a straight forward amp and will drive a passive bookshelf as normal. Since you are using an active sub it will tap of the signal going to the bookshelf again as normal.

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Nobsound G2 PRO 300W Subwoofer Amplifier, Mini Mono Channel Class D Integrated Sub Amp, Full-Frequency and Bass Switchable Home Theater Audio Amplifier for Passive Speakers/Active Subwoofer

Product ID: 145214571

Details

Manufacturer
Nobsound
Maximum supply voltage
35 Volts
Minimum supply voltage
24 Volts (DC)
Mounting type
Freestanding
Voltage
24 Volts (DC)

⚡300W max power output

🔄Dual PBTL/SUB mode switch

🎚️Adjustable gain & SUB frequency

€ 218.61

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Description

🎧 Elevate your sound game with power and precision in a sleek mini package!

COMPACT STYLISH - Sleek aluminum chassis fits effortlessly into any modern workspace or living room setup.
RELIABLE PROTECTED - Built-in speaker protection and low-pass filter ensure distortion-free, high-fidelity audio at all volumes.
VERSATILE AUDIO MODES - Seamlessly switch between full-frequency and dedicated subwoofer output for tailored soundscapes.
POWERHOUSE PERFORMANCE - Unleash 300W of crystal-clear, room-filling sound that commands attention.
PRECISION BASS CONTROL - Fine-tune your low-end with adjustable SUB frequency from 40Hz to 300Hz for immersive home theater vibes.

The Nobsound G2 PRO is a compact, 300W Class D mono amplifier designed for both passive speakers and active subwoofers. Featuring a dual-mode PBTL/SUB switch, adjustable gain and subwoofer frequency controls, and a durable aluminum chassis, it delivers high-fidelity, distortion-free audio with built-in speaker protection. Ideal for home theater and desktop audio setups, it supports versatile configurations including dual-unit stereo operation.

Specifications

ASIN	B07TTMN51V
Best Sellers Rank	18,806 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 71 in Hi-Fi Amplifiers
Brand	Nobsound
Country Of Origin	China
Customer Reviews	4.2 4.2 out of 5 stars (216)
Included Components	1* 32V/5A Power Supply, 1* G2 PRO Mono Power Amplifier
Item Weight	0.5 Kilograms
Manufacturer	Nobsound
Manufacturer Part Number	DZ072_UK
Material	Metal
Maximum Output Power	300 watts
Maximum Supply Voltage	35 Volts
Minimum Supply Voltage	24 Volts (DC)
Model Number	DZ072_UK
Mounting Type	Freestanding
Number of Channels	1
Number of Items	1
Output Power	300 Watts
Package Type Name	Cardboard Box
Product Warranty	1 YEAR
Specification Met	CE
Supply Current	5 Amps
Unit Count	1.0 count
Voltage	24 Volts (DC)

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€ 218.61

Duties & taxes included

In stock

Sold byAmazon CyprusDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Cyprus.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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